Pin Function Grouping

adrian95

adrian95

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, 3v3, gnd_1 gnd_2 etc NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

flux

Yes — from the BME280 datasheet pin table, I’d group each pin exactly once like this:

Table

Functional groupPins
PowerPin 8: VDD — analog supply; Pin 6: VDDIO — digital/interface supply
GroundPin 1: GND, Pin 7: GND
Communication / InterfacePin 2: CSB — chip select; Pin 3: SDI — serial data input / SDA; Pin 4: SCK — serial clock / SCL; Pin 5: SDO — serial data output / I²C address select
No pin is duplicated across groups. For naming, I’d keep both ground pins in the same Ground group but label them separately as GND_1 = pin 1 and GND_2 = pin 7 if the symbol needs unique terminal names.
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VDD
SCK
CSB
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BME280

BME280 thumbnail
Humidity, Pressure, Temperature 0 ~ 100% RH I²C, SPI ±3% 1 s Surface Mount
BME280 I2C breakout module
The BME280 integrates three sensors—temperature, relative humidity, and pressure—along with a high-performance digital interface. It communicates via I²C or SPI, making it easy to interface with microcontrollers like Arduino, ESP32, and STM32.
It is designed for low power consumption, making it suitable for battery-powered applications such as portable weather stations and smart home devices.
Key Features Environmental Sensing Measures: Temperature Relative Humidity Barometric Pressure Enables altitude estimation based on pressure readings
High Accuracy Temperature: ±1.0°C (typical) Humidity: ±3% RH (typical) Pressure: ±1 hPa (typical)
Low Power Consumption Typical current: ~0.6 µA (sleep mode) ~3.6 µA (measurement mode) Ideal for battery-operated devices
Communication Interfaces Supports: I²C (up to 3.4 MHz) SPI (3-wire / 4-wire) Easy integration with most microcontrollers
Compact Package Small footprint: 2.5 × 2.5 × 0.93 mm LGA package Suitable for space-constrained designs
Built-in Features Factory-calibrated coefficients stored in NVM Configurable oversampling and filtering Integrated ADC for high-resolution measurements
#commonpartslibrary #sensor #humidity #pressure

Properties

Sensor

Bosch Sensortec

BME280

bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf

U

creativecommons.org/licenses/by/4.0/

parametric-v1

Pricing & Availability

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Qty 1

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